Many of the states with the worst dental health are in the south. Arkansas ranked last in the study, followed by Mississippi, West Virginia, Alabama, and Louisiana.

Montana had the lowest ranking in the west, 43rd overall. Despite having the third highest percentage of dentists per capita, Montana had the highest percentage of residents with "poor oral health", the second-highest percentage of residents who experience tooth pain, and ranked fourth among states where dental and oral health issues negatively impact the quality of life.

Wisconsin, North Dakota, Minnesota, Connecticut, and Illinois were crowned the top five states in the study.